Results 41 to 50 of about 3,676 (240)

Grading Material Properties in 3D Printed Concrete Structures

Nordic Concrete Research, 2022
Functionally graded materials (FGMs) describe composite materials with a gradual change in properties along one or several axes. A major advantage with this approach is the avoidance of discontinuities between different layers of material.
Vargas José Hernández, Westerlind Helena, Silfwerbrand Johan   +2 more
doaj   +1 more source

Technologies for Improving Buildability in 3D Concrete Printing

SSRN Electronic Journal, 2021
Buildability is the ability to 3D print by adding concrete layer by layer continuously to the required level without significant deformation or collapse of the freshly printed component. This paper presents a systematic review of the reported studies to improve the buildability of concrete. The paper also presents original concepts and some results for
Shravan Muthukrishnan, Sayanthan Ramakrishnan, Jay Sanjayan   +2 more
openaire   +2 more sources

Multimodal Haptic Perception Through Synergistic Nanocomposite Sensor Arrays

Advanced Materials Technologies, EarlyView.
Multi‐modal fingertip haptics are advanced through a bioinspired &vertical‐via' electronic skin architecture. A confined PDMS/MWCNT/NiNP nanocomposite, sitting at the percolation threshold, enables tactile, thermal, and magnetic sensing. A unique via‐density gradient and dedicated &Un‐Touch' reference nodes provide robust spatial resolution and signal ...
Amos Bardea, Fernando Patolsky
wiley   +1 more source

Rheology properties and future trend of 3D printing concrete: State of the art review

Next Materials
3D printing technology has emerged as a major trend in the current development of the construction industry due to its ability to save materials, time, and labor, while enabling rapid construction.
Tianyu Sun, Zhongyuan Ren, Jiarui Liu, Dominic E.L. Ong, Jeung-Hwan Doh   +4 more
doaj   +1 more source

Study on anisotropy of 3D printing PVA fiber reinforced concrete using destructive and non-destructive testing methods

Case Studies in Construction Materials, 2022
To further understand the mechanical properties and anisotropy characteristics of 3D printing PVA fiber reinforced concrete (PFRC). This study first obtained 3D printing PFRC mixes with superior mechanical properties through slump tests, penetration ...
Bing Liu, Xiaoyan Liu, Guangtao Li, Songyuan Geng, Zhi Li, Yunhao Weng, Kai Qian   +6 more
doaj   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

ChicGrasp: Imitation‐Learning‐Based Customized Dual‐Jaw Gripper Control for Manipulation of Delicate, Irregular Bio‐Products

Advanced Robotics Research, EarlyView.
Automated poultry processing lines still rely on humans to lift slippery, easily bruised carcasses onto a shackle conveyor. Deformability, anatomical variance, and hygiene rules make conventional suction and scripted motions unreliable. We present ChicGrasp, an end‐to‐end hardware‐software co‐designed imitation learning framework, to offer a ...
Amirreza Davar, Zhengtong Xu, Siavash Mahmoudi, Pouya Sohrabipour, Chaitanya Pallerla, Yu She, Wan Shou, Philip Glen Crandall, Dongyi Wang   +8 more
wiley   +1 more source

Systematic Exploration of 3D Concrete Printing Parameters for Conformal Printing on Sloped Surfaces

Advanced Robotics Research, EarlyView.
A conformal slicing algorithm is developed for robotic 3D concrete printing (3DCP) on sloped surfaces as a first step toward printing slab‐on‐grade foundations on uneven terrain. Systematic experiments quantify the effects of nozzle speed, extrusion rate, and toolpath direction on filament dimension and stability.
Paniz Farrokhsiar, Benay Gursoy, Jose Pinto Duarte   +2 more
wiley   +1 more source

Constituent components of 3D printing in construction: Mixture, reinforcement and their main characteristics [PDF]

E3S Web of Conferences
Construction 3D printing is one of the most promising areas in the construction of various structures. Thanks to the possibilities of automation, digital concrete production makes it possible to create complex structures that withstand the same forces as
Konoplianyk Oleksandr, Sopilnyak Artem, Sirenok Kyrylo, Sereda Svitlana, Yarova Tetyana   +4 more
doaj   +1 more source

3D Printing with Biomaterials—The New Sustainable Future of Textiles?

Engineering Proceedings, 2023
Additive manufacturing (AM), also known as 3D printing, encompasses a wide range of techniques for applications ranging from on-demand production to functional prototypes.
Manuela Polewka, Franca Enz, Marie Jennißen, Emilia Wirth, Lilia Sabantina   +4 more
doaj   +1 more source